回轉載荷 的英文怎麼說
中文拼音 [huízhuǎnzǎihé]
回轉載荷
英文
gyroscopic loading-
In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented
本文借鑒鋼框架節點構造，設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點，包括常規栓焊（ wfp ）節點、翼緣全螺栓連接（ bfp ）節點、雙t板連接（ dst ）節點以及加勁端板連接（ sep ）節點，進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究，比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵，主要結論有： 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈，沒有或略有捏攏現象，耗能能力強； 2 、軸壓比對節點滯回曲線有顯著影響，全部節點都有顯著的剛度退化； 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段，具有良好的延性性能； 4 、從整體抗震性能上看，翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點，可在實際工程中加以推廣。It is also pointed out that the shear stress along the flow - in direction existing near the junction of straight and curve edges is one of the major components of drawing pressure, and it is very important in the calculation of drawing load of non rotational symetrical drawing
並且指出，法蘭直、曲邊交界附近存在的流入方向剪切力是拉深力的主要成分之一，在非回轉對稱拉深載荷的計算中非常重要。According to the frndamental and the steps of this method, we cans use the linear regress filter method to make the simulation of the wind load and then we can educe the curve of the time - process wind velocity. after that step, we can get the chart of the dynamic wind load which we can deliver the crosswind into the particle wind load and put them on the corresponding cell nodes. then we can do the analysis of the dynamical wind load through the time - process analysis to get the max value of the displacement
根據線性回歸濾波器法的基本原理和步驟，藉助相關軟體進行風荷載的人工模擬並得出風速時程曲線，進而轉化為風動力譜，由此將橫風向風力表達成節點風荷載作用於相應的單元節點上，按時程分析法對該空間桁架體系進行風荷載的動力分析，求出結構在進行風動力荷載分析時，結構相應節點對應的最值位移值。In accordance with the occurrence behavior of roof strata and the fracture characteristics of key stratum in shallow seam longwall mining, studied post - buckling behavior of roof key stratum in the process of mining by using initial post - buckling theory, which derived a critical load and a breaking span of the main roof during the first weighting, determined the final subsidence and the maximum rotation angle for broken key stratum, and presented an application with the example of daliuta 1203 face
摘要根據淺埋煤層頂板巖層的賦存特點和長壁開采時關鍵層的變形破斷特徵，應用初始后屈曲理論探討了開采過程中頂板關鍵層的后屈曲性態，得出了老頂初次來壓時頂板的臨界載荷和破斷步距，確定了頂板破斷后的極限下沉量和回轉角，並以神東礦區大柳塔1203工作面為例給出了工程實例。Abstract : according to the deep analysis of the typical punching process, the loading charts and the amplitude - frequency curves of straight side cnc turret press frame are obtained. in the end the dynamic response of a typical process is calculated using modal superposition method by fem software marc and the static and dynamic stress of some nodes is compared as well
文摘:根據板料沖裁時的工作負荷圖確定了數控回轉頭壓力機的動載荷譜，並通過傅立葉展開，獲得了壓力機的幅頻譜，最後通過marc軟體採用模態疊加法計算了典型沖裁時機身的動態響應，分析了其動態特性，並對特徵點的動靜態應力進行了比較。" since then, further testing has been carried out on test rigs back at our base in clermont - ferrand, and at calspan in buffalo, new york, where it is possible to spin tyres at very high speeds while applying specific loadings
「自那時起，我們回到了克萊蒙-費朗德的總部開始在測試平臺上展開進一步的測試，還有布法羅的卡斯潘，紐約，在那裡可以在非常高速的情況下旋轉輪胎同時適用於單位載荷。Based on the linear filter technology of random process, artificial wind speed processes are generated with the autogressive - type simulation method, which consider time and spatial correlativity. then the time history record of fluctuating wind pressures are obtained considering the velocities coupling and the added air mass
採用線性濾波器法中的自回歸模型及參數識別技術模擬了多維脈動風速時程，風速轉化為風荷載時考慮風與結構的速度禍合、空氣附加質量等因素。Eventually, the rehabilitated specimens were retested under low cyclic loading. the loads and displacements of the beam end as well as the steel or plate strain were measured in detail ; and furthermore, crack patterns and failure model of the specimens were also observed during the test
在對試驗結果的整理分析后，本文對比研究了加固前後以及用不同加固方法加固的試件的開裂荷載、屈服荷載和極限承載力、梁端荷載?轉角滯回曲線及其包絡線特徵、延性和耗能性能。A new method is necessary. in this paper, we employed the i - deas software to developed a 3 - d model and make a finite element analysis ( fea ) on slewing frames based on the nominal loads and geometry parameter of crane qtz63, aimed to find the principle of the area with high stress and big deformation and estimated the effect on the whole tower crane system
本文以qtz63塔機為研究對象，按設計提供的載荷及幾何參數，運用i - deas軟體先對回轉支承系統三維建模，再進行結構有限元分析，依據強度及變形結果，找出塔機各種工況下高應力區域、變形明顯部位出現的規律，並分析對塔機系統產生的影響。分享友人